EP0443483B1 - Lötverfahren für die Befestigung eines Elementes, wie z.B. eines hybriden Schaltkreissubstrats auf einer wärmeableitenden Unterlage - Google Patents
Lötverfahren für die Befestigung eines Elementes, wie z.B. eines hybriden Schaltkreissubstrats auf einer wärmeableitenden Unterlage Download PDFInfo
- Publication number
- EP0443483B1 EP0443483B1 EP91102264A EP91102264A EP0443483B1 EP 0443483 B1 EP0443483 B1 EP 0443483B1 EP 91102264 A EP91102264 A EP 91102264A EP 91102264 A EP91102264 A EP 91102264A EP 0443483 B1 EP0443483 B1 EP 0443483B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hybrid circuit
- substrate
- fixing
- pattern
- heat dissipating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000000758 substrate Substances 0.000 title claims description 10
- 238000005476 soldering Methods 0.000 title claims description 9
- 238000007747 plating Methods 0.000 claims 2
- 230000003252 repetitive effect Effects 0.000 claims 1
- 238000001465 metallisation Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4871—Bases, plates or heatsinks
- H01L21/4882—Assembly of heatsink parts
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
- H05K1/092—Dispersed materials, e.g. conductive pastes or inks
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0364—Conductor shape
- H05K2201/0373—Conductors having a fine structure, e.g. providing a plurality of contact points with a structured tool
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09681—Mesh conductors, e.g. as a ground plane
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
- H05K3/0061—Laminating printed circuit boards onto other substrates, e.g. metallic substrates onto a metallic substrate, e.g. a heat sink
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a soldering method, applicable in particular to the fixing of a hybrid circuit substrate to a heat sink support.
- This heat dissipation is obtained by fixing, generally by soldering, the substrate of the hybrid circuit to a heat sink support, generally made of copper.
- FIG. 1 Such an assembly is shown in section in FIG. 1, where the substrate of the hybrid circuit, the heat sink support and the components carried by this circuit are marked 1, 2, 3 respectively.
- solder paste is generally used which is spread over one of the faces of one or the other of the elements to be brazed, coming opposite the other element.
- the face of the hybrid circuit substrate coming opposite the heat sink support is also previously metallized in order to ensure the resistance of the soldering. In the previously known methods, this metallization is carried out uniformly over the entire surface of the face considered.
- the subject of the present invention is a method of fixing by brazing which makes it possible to avoid this drawback.
- the subject of the present invention is a soldering method for fixing an element such as a hybrid circuit substrate to a heat sink support, method comprising a prior metallization carried out on said element, essentially characterized in that said metallization is performed according to a pattern discontinuous, such that the dimensions of the non-metallized areas are reduced to dimensions that do not present a risk of deterioration of said element in operation.
- this pattern 4 is produced on the face of the substrate of the hybrid circuit coming opposite the heat sink support 2.
- This pattern consists in this case of a repeating pattern, more particularly of a grid 4, the meshes of which are sufficiently tightened in order to correctly ensure the heat transfer function between the substrate of the hybrid circuit and the heat sink support.
- the non-metallized areas of this pattern can have dimensions from 1 to 9 mm2, and metallized lines such as 6 can have a width of the order of mm.
- This pattern can be obtained, for example, by Palladium-Silver screen printing, the thickness of the layer thus obtained being of the order of ten microns.
- the pattern 4 makes it possible to locate in a predetermined manner the formation of air pockets at the time of brazing, and to reduce these air pockets to dimensions presenting no risk of deterioration of the hybrid circuit in operation.
- the shape of the pattern 4 and its dimensions may vary depending on the applications.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Structure Of Printed Boards (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Claims (3)
- Lötverfahren zur Befestigung eines Elements, z.B. eines Substrats eines Hybrid-Schaltkreises an einem wärmeableitenden Träger, wobei zuerst dieses Element metallisiert wird, um die Haftung der Lötschicht zu sichern, dadurch gekennzeichnet, daß die Metallisierung gemäß einem unterbrochenen Muster (4) durchgeführt wird, derart, daß die Größe der nicht metallisierten Bereiche (5) ausreichend gering ist, um die Gefahr einer Beschädigung des Elements im Betrieb auszuschließen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Muster repetitiv ist.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß das Muster ein Gitter ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9002277 | 1990-02-23 | ||
FR9002277A FR2658977A1 (fr) | 1990-02-23 | 1990-02-23 | Procede de brasage, pour la fixation d'un element tel qu'un substrat de circuit hybride a un support dissipateur thermique. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0443483A1 EP0443483A1 (de) | 1991-08-28 |
EP0443483B1 true EP0443483B1 (de) | 1993-04-07 |
Family
ID=9394077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91102264A Expired - Lifetime EP0443483B1 (de) | 1990-02-23 | 1991-02-18 | Lötverfahren für die Befestigung eines Elementes, wie z.B. eines hybriden Schaltkreissubstrats auf einer wärmeableitenden Unterlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0443483B1 (de) |
DE (1) | DE69100058T2 (de) |
FR (1) | FR2658977A1 (de) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3031912A1 (de) * | 1980-08-23 | 1982-04-01 | Brown, Boveri & Cie Ag, 6800 Mannheim | Anordnung zur potentialunabhaengigen waermeabfuehrung |
GB8324839D0 (en) * | 1983-09-16 | 1983-10-19 | Lucas Ind Plc | Mounting carrier for microelectronic silicon chip |
US4603374A (en) * | 1984-07-03 | 1986-07-29 | Motorola, Inc. | Packaging module for a semiconductor wafer |
-
1990
- 1990-02-23 FR FR9002277A patent/FR2658977A1/fr not_active Withdrawn
-
1991
- 1991-02-18 EP EP91102264A patent/EP0443483B1/de not_active Expired - Lifetime
- 1991-02-18 DE DE9191102264T patent/DE69100058T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69100058T2 (de) | 1993-07-15 |
EP0443483A1 (de) | 1991-08-28 |
DE69100058D1 (de) | 1993-05-13 |
FR2658977A1 (fr) | 1991-08-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0306412B1 (de) | Gehäuse für elektronische Schaltung | |
EP0407957B1 (de) | Wärmeabfuhrvorrichtung für Komponenten vom Typ SMD zur Montage auf Schaltplatten | |
WO2006032611A1 (fr) | Dispositif electronique avec repartiteur de chaleur integre | |
FR2644964A1 (fr) | Substrat en ceramique avec interconnexions entre couches remplies de metal pour microcircuits hybrides et procede de fabrication | |
FR2686765A1 (fr) | Dispositif de fixation, notamment pour la fixation d'un composant electronique sur une paroi d'un dissipateur thermique . | |
EP0310463A1 (de) | Gehäuse für einen hochintegrierten Schaltkreis | |
FR2813440A1 (fr) | Dispositif a semiconducteur pour la commande d'energie electrique | |
EP0055640B1 (de) | Klemmanordnung für aufeinandergelegte Elemente ausgerichteter Gruppen, insbesondere für die elektrische Verbindung leitender Elemente | |
FR2879021A1 (fr) | Dispositif a semiconducteur de puissance | |
EP0443483B1 (de) | Lötverfahren für die Befestigung eines Elementes, wie z.B. eines hybriden Schaltkreissubstrats auf einer wärmeableitenden Unterlage | |
EP0083265B1 (de) | Verbindungsträger eines integrierten Schaltungsgehäuses auf einer gedruckten Schaltung, und Verbindungssystem mit solchem Träger | |
EP1256982A1 (de) | Elektronikmodul und seine Montage | |
EP1116424B1 (de) | Elektronische baugruppe mit einer wärmeplatte | |
EP0085622B1 (de) | Montierungsträger für integriertes Schaltungsgehäuse mit Ausgangsleiter verteilt um die äussere Begrenzung des Gehäuses | |
EP1054445A1 (de) | Elektronisches Gehäuse auf einer Leiterplatte sowie Verfahren zu seiner Herstellung | |
FR2638894A1 (fr) | Dispositif et procede de connexion et de fixation de composants | |
EP0054597A1 (de) | Kühlanordnung für Modul-Steckerstifte | |
FR2551618A1 (fr) | Procede de fabrication d'un circuit imprime a couches enterrees et circuit imprime obtenu par un tel procede | |
WO2020225499A1 (fr) | Procede de fabrication d'un module electronique de puissance | |
EP1506575A2 (de) | Anordnung von leistungshalbleiterbauteilen auf einer leiterplatte und prozess zur herstellung derselben | |
FR2514601A1 (fr) | Systeme d'interconnexion thermique pour carte de circuit imprime revetue de composants electroniques | |
WO2020021197A1 (fr) | Procede de fabrication d'un module electronique de puissance | |
EP0680248B1 (de) | Verfahren zur Herstellung einer elektronischen Leistungsschaltung und nach diesem Verfahren erhaltene elektronische Schaltung | |
FR2638050A1 (fr) | Dispositif de report de composant sur un circuit hybride | |
FR2565452A1 (fr) | Procede de realisation d'un dispositif de raccordement electrique entre deux cartes de circuits imprimes, dispositif ainsi obtenu et procede de raccordement electrique mettant en oeuvre ce dispositif. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19920217 |
|
17Q | First examination report despatched |
Effective date: 19920630 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REF | Corresponds to: |
Ref document number: 69100058 Country of ref document: DE Date of ref document: 19930513 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19930422 |
|
ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI CASETTA & PERANI S.P.A. |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19970113 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19970114 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19970124 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980218 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19980228 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19980218 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981103 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050218 |